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ASIC
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An ASIC (Application-Specific Integrated Circuit) is a chip designed and manufactured to perform one specific task. In cryptocurrency mining, ASIC miners are dedicated hardware devices built to compute a single mining algorithm as efficiently as possible — far outperforming general-purpose CPUs and GPUs.
ASIC vs GPU vs CPU
| CPU | GPU | ASIC | |
|---|---|---|---|
| Purpose | General computing | Graphics + parallel computing | Single mining algorithm |
| Hashrate | Low | Medium | Very high |
| Power efficiency | Low | Medium | High |
| Flexibility | Any task | Multiple algorithms | One algorithm only |
| Cost | Low | Medium–High | High |
ASICs can be 10–1000× more power-efficient than GPUs for the same algorithm. This is why Bitcoin mining is almost exclusively done by ASICs.
How an ASIC miner works
- Connect the ASIC to your local network via Ethernet
- Open the web interface and enter your pool address and wallet address
- The miner runs 24/7, computing hashes and submitting valid shares to the pool
- The pool credits your shares and pays out earnings to your wallet
Popular ASIC manufacturers
- Bitmain Antminer — the dominant brand; models for SHA-256 (BTC), Scrypt (LTC), and more
- IceRiver — popular KAS (Kaspa) miners for home and small-scale use
- Canaan Avalon — one of the earliest ASIC producers; BTC and LTC models
- Goldshell — compact miners suited for home use; supports multiple algorithms
- Jasminer — focused on EtcHash; low-noise models for quiet environments
ASIC limitations
- Algorithm-locked — a SHA-256 ASIC cannot mine Kaspa or Monero; it is permanently dedicated to one algorithm
- Noise and heat — industrial ASICs are loud and generate significant heat; proper ventilation is required
- Obsolescence — newer ASIC generations regularly outperform older ones, reducing profitability over time
